Amazon Software Engineer II SDE2 interview questions

The interviews themselves were quite pleasant but the overall process of setting it up was quite bad. I was given 3 rounds in total of which the first one which was a coding round was rescheduled 3 times and eventually never happened. The remaining 2 rounds were both design rounds with a senior developer and a manager. Both went quite ok. Then, blank. No call with feedback, no email whether selected or not. Even with follow ups from my side, absolutely nothing

Had 5 rounds of interview in total. Pathetic interview process. The recruiter randomly invites people for interview. Same recruiter invited me twice in a week's gap when I was already working on my existing interviews with her. Totally unprofessional.